From: Young Xiao <yang...@hotmail.com> the type mem->start is unsigned long, so this can overflow on 32bit system, since the type addr is uint64_t.
Signed-off-by: Young Xiao <yang...@hotmail.com> --- drivers/gpu/drm/radeon/radeon_vm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c index 7f1a9c7..51559d8 100644 --- a/drivers/gpu/drm/radeon/radeon_vm.c +++ b/drivers/gpu/drm/radeon/radeon_vm.c @@ -946,7 +946,7 @@ int radeon_vm_bo_update(struct radeon_device *rdev, bo_va->flags &= ~RADEON_VM_PAGE_WRITEABLE; if (mem) { - addr = mem->start << PAGE_SHIFT; + addr = (u64)mem->start << PAGE_SHIFT; if (mem->mem_type != TTM_PL_SYSTEM) { bo_va->flags |= RADEON_VM_PAGE_VALID; } -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel